freightliner cascadia, Driver Manual

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not account for traffic flows or surrounding ve-
hicles.
Driver interaction with PCC is the same as conven-
tional cruise control, using the standard cruise control
buttons. In the event of a problem with PCC, or when
driving on a road with no profile information avail-
able, the system reverts to conventional cruise
control.
Cruise Control ("CC") Limiter
On vehicles equipped with a CC Limiter (or CC
Band) switch (see
Fig. 5.24 or Fig. 5.25 ), the cruise
control limiter allows the vehicle to exceed the set
cruise control speed before engine braking is ap-
plied. The CC limiter switch provides more flexibility
to the existing cruise control limit function, allowing
the driver to tune the cruise function to better suit
driving preferences and conditions. To select a limit,
use the three-position CC Limiter switch on the dash.
See
Table 5.1 for switch settings.
CC Limiter Switch Settings
Position Approximate Overrun Setting
Top in 3 mph (5 km/h)
Middle 6 mph (9 km/h)
Bottom in Unlimited
Table 5.1, CC Limiter Switch Settings
Descent Control and Deceleration
Modes, Detroit
™ Automated
Transmissions
On vehicles equipped with a Detroit multifunction
control (
Fig. 5.26 ), the functions of the lever posi-
tions for engine brake control change when cruise
control is set. Two distinct modes can be activated:
•
Descent Control Mode—engine braking keeps
the speed below cruise set speed; throttle is
not automatically applied.
•
Deceleration Mode—engine braking activates
to reduce vehicle speed (with no lower limit) at
a constant rate.
Descent Control Mode
Descent Control Mode keeps the vehicle speed
below the set cruise speed on a downhill.
To activate Descent Control Mode, set the cruise
control speed with the engine brake on (
Fig. 5.26 ,
positions 1, 2, or 3). In this mode, all three levels of
engine braking will be employed to to keep the
speed below the set cruise speed. This mode will not
keep the speed above the lower limit of the set
speed, so it is possible to eventually coast to a stop,
unless the lever is moved to "engine brake off" (posi-
tion 0), or throttle is applied. After throttle application,
the Descent Control Mode is resumed.
Moving the lever to "engine brake off" (position 0)
cancels Descent Control Mode and resumes cruise
speed. To reactivate Descent Control Mode, reset the
cruise control speed with the lever in position 1, 2, or
3.
Deceleration Mode
Deceleration Mode reduces the vehicle speed at a
constant rate.
With the cruise control speed set, activate Decelera-
tion Mode by moving the lever to engine brake on
CC
LIMIT
f611203 02/19/2013
Fig. 5.24, CC Limiter Switch
CC
BAND
f611191 05/08/2012
Fig. 5.25, CC Band Switch
Driver Controls
5.13